Machine tool spindle has a second guide, held by a segment at all settings between the first and second working positions, for a secure coupling at the tool holder without damage to the clamp components

摘要

The machine tool spindle has a second guide (76/100), held by at least one segment (60) in the second working position, and at all intermediate settings between the first and second working positions. The segment extends along the spindle axis (46). The first guide system (50/64,54/78,68/70,72,92) is at both axial ends, and the second guide acts with the segment at only one axial end away from the holder (34).